Analysis

  • max time kernel
    95s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 00:56

General

  • Target

    2024-09-21_a21c915ad49b656698938e90ce467b29_cryptolocker.exe

  • Size

    91KB

  • MD5

    a21c915ad49b656698938e90ce467b29

  • SHA1

    c80815e65df6d609aa0e568dfd3858a35fc34653

  • SHA256

    9b5aa4098402202d94ed4d856913fc14bd4599fa97f8d1a19594ded446da49c5

  • SHA512

    2d9c1db1d7ca646381695eaf4fa9fc4010a8847a17eb5db0313246aa5b39499f8d699687665226ca92475be263d7d5b1232e4f50f084e57d4ac07058231e3796

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJ4J:xj+VGMOtEvwDpjubwQEIiVmkY

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_a21c915ad49b656698938e90ce467b29_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_a21c915ad49b656698938e90ce467b29_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:1892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    91KB

    MD5

    03881a517643a62661a89b931eb4bb58

    SHA1

    28afff62161367818c726f49dc4d0ede928ba532

    SHA256

    c92e3a98407a030a1cc6a4ab30fe1c9f7ba782ba1597fd50968862f9ce4fdc05

    SHA512

    b93dc388d97669d6481881ec6289f34dc88f6f3e2545a6cf02e8d3e13b1b0ce619582e94691af0b28d8ed8e38db3fc6e8aab8ebb6f965b4ac00f8b68756aa4ce

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1892-24-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/1892-19-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/1892-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2764-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2764-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2764-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2764-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/2764-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB